Five people infected with a rare strain of Ebola have recovered in eastern Congo, the head of the World Health Organization said Sunday, offering a sign of progress as health officials race to contain an outbreak that has spread across parts of Congo and into neighboring Uganda. 

WHO Director-General Tedros Adhanom Ghebreyesus announced the recoveries during the opening of a new Ebola treatment center in Bunia, the capital of Ituri province and epicenter of the outbreak.